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  On the structure of measurement noise in eye-tracking

Coey, C. A., Wallot, S., Richardson, M. J., & Van Orden, G. (2012). On the structure of measurement noise in eye-tracking. Journal of Eye Movement Research, 5(4). doi:10.16910/jemr.5.4.5.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-346D-5 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-346E-3
Genre: Journal Article

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Coey, Charles A., Author
Wallot, Sebastian1, Author
Richardson, Michael J., Author
Van Orden, Guy, Author
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1External Organizations, ou_persistent22              

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 Abstract: Past research has discovered fractal structure in eye movement variability and interpreted this result as having theoretical ramifications. No research has, however, investigated how properties of the eye-tracking instrument might affect the structure of measurement variability. The current experiment employed fractal and multifractal methods to investigate whether an eye-tracker produced intrinsic random variation and how features of the data recording procedure affected the structure measurement variability. The results of this experiment revealed that the structure of variation from a fake eye was indeed random and uncorrelated in contrast to the fractal structure from a fixated, real human eye. Moreover, the results demonstrated that data-averaging generally changes the structure of variation, introducing spurious structure into eye movement variability.

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 Dates: 2012
 Publication Status: Issued
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 Identifiers: Other: WOS:000328575400005
ISSN: 1995-8692
DOI: 10.16910/jemr.5.4.5
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Title: Journal of Eye Movement Research
Source Genre: Journal
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Pages: - Volume / Issue: 5 (4) Sequence Number: - Start / End Page: - Identifier: -